The effect of the WGC condition on the maximal energy extracted from black holes

ISCOs 和弱引力猜想界在高导数引力理论中的研究

ISCOs and the weak gravity conjecture bound in higher derivative theories of gravity

研究带电粒子在AdS黑洞中的环形轨道及其极限ISCOs，通过双扭CFT算符的异常维数提取，发现电荷与质量比的界与WGC一致，且耦合参数增加时该比值也增加。

Maximal energy extraction through information gathering

We calculate the maximal non-equilibrium work that can be extracted from any mass using information about its micro-state. This is done through the use of black hole thermodynamics in the context of the thermodynamics of information. The non-equilibrium work that can be obtained by knowing the exact micro-state is found to be $\frac{1}{2} Mc^{2}$. This is calculated using the entropy of an eternal, uncharged, non rotating black hole. This is derivation helps elucidate the relativity of entropy and its relationship to general relativity and time.

Maximal Efficiency of Collisional Penrose Process with Spinning Particles

We analyze collisional Penrose process of spinning test particles in an extreme Kerr black hole. We consider that two particles plunge into the black hole from infinity and collide near the black hole. For the collision of two massive particles, if the spins of particles are $s_1 \approx 0.01379μM$ and $s_2 \approx -0.2709μM$, we obtain the maximal efficiency is about $η_{max} = (\text{extracted energy})=(\text{input energy}) \approx 15.01$, which is more than twice as large as the case of the collision of non-spinning particles ($η_{max} \approx 6.32$). We also evaluate the collision of a mas…

Maximal Efficiency of Collisional Penrose Process with Spinning Particle II

We analyze the collisional Penrose process between a particle on the ISCO orbit around an extreme Kerr black hole and a particle impinging from infinity. We consider both cases with non-spinning and spinning particles. We evaluate the maximal efficiency, $η_{\text{max}}=(\text{extracted energy})/(\text{input energy})$, for the elastic collision of two massive particles and for the photoemission process, in which the ISCO particle will escape to infinity after the collision with a massless impinging particle. For non-spinning particles, the maximum efficiency is $η_{\text{max}} \approx 2.562$ f…

虫洞诱导的相关性：两个宇宙之间的联系

Wormhole-Induced correlation: A Link Between Two Universes

本研究探讨虫洞几何对量子信息提取的影响，发现虫洞可增强互信息提取，并揭示了非经典相关性的存在。

立方 Galileon 理论中完全一致的旋转黑洞

Fully consistent rotating black holes in the cubic Galileon theory

本文利用谱方法在 3+1 形式表述下首次实现了立方 Galileon 理论中旋转黑洞的完全一致计算，发现其质量消失且不遵循黑洞热力学第零定律。